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authorErwan Le Ray <erwan.leray@foss.st.com>2021-03-19 19:42:50 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-03-23 10:28:18 +0100
commitc0f3332cb5f2e370c041594fa1ff59db4ee68925 (patch)
tree391e39db9cd62d42ef0a12396cf7ea7a63cd7e98 /drivers/tty/serial/stm32-usart.c
parent1631eeeaf084acdc29ca0370db8ea436692f71f5 (diff)
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serial: stm32: clean wakeup handling in serial_suspend
Remove useless call to stm32_usart_serial_en_wakeup() routine in suspend callback. When called with "false" argument, this routine is clearing UESM and WUFIE bits if usart is not wakeup source. Those bits are already cleared in set_termios(), and then in serial_resume() callback when usart is wakeup source. Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com> Signed-off-by: Erwan Le Ray <erwan.leray@foss.st.com> Link: https://lore.kernel.org/r/20210319184253.5841-3-erwan.leray@foss.st.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/stm32-usart.c')
-rw-r--r--drivers/tty/serial/stm32-usart.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c
index 11656b6b7c0f..cc054f07bd83 100644
--- a/drivers/tty/serial/stm32-usart.c
+++ b/drivers/tty/serial/stm32-usart.c
@@ -1536,8 +1536,6 @@ static int __maybe_unused stm32_usart_serial_suspend(struct device *dev)
if (device_may_wakeup(dev) || device_wakeup_path(dev))
stm32_usart_serial_en_wakeup(port, true);
- else
- stm32_usart_serial_en_wakeup(port, false);
/*
* When "no_console_suspend" is enabled, keep the pinctrl default state